The Bridgeport Bridge was a historic structure located near Denmark, Iowa, United States. This span was a replacement bridge for the original structure whose middle stone pier was deteriorating. The weaknesses in the old bridge were noted in 1887 and 1893. Both Des Moines and Lee counties financed the $5,110 construction of this bridge, which spanned the Skunk River between the two counties. The 240-foot-long (73 m) Pennsylvania truss bridge was built in 1904 by the Clinton Bridge and Iron Works of Clinton, Iowa. It carried local traffic for nearly 90 years before it was closed. On February 27, 2024 the south abutment collapsed. The bridge was demolished over the next 3 weeks. It had the distinction of being the longest pin-connected truss remaining in Iowa. The Bridgeport Bridge was listed on the National Register of Historic Places in 1998.
The Le Grand Bridge was a bridge north of Le Grand, Iowa, United States. It spanned the Iowa River for 242 feet (74 m), carrying traffic on a gravel road named Abbot Avenue. Since Abbott Avenue is the border between Marshall and Tama counties, the bridge is in two counties lengthwise. Many bridges span from one county to another, but few are lengthwise split. It necessitated a joint session of the two counties' Boards of Supervisors on June 29, 1896, to approve the project. The pinned Pratt through truss bridge was built in 1896 by the Marshalltown Bridge and Iron Works for $3,548. It was listed on the National Register of Historic Places in 1998. The bridge collapsed in the Iowa flood of 2008.
The First Avenue Bridge is a historic structure located in downtown Cedar Rapids, Iowa, United States. It carries U.S. Route 151 for 697 feet (212 m) over the Cedar River. The original six-span concrete arch structure was completed in 1920 for $420,000. It was designed by Marsh Engineering Company and built by Koss Construction Co., both of Des Moines. Consulting engineer Ned L. Ashton of Iowa City designed the 1960s remodel. He had all of the concrete work above the original arches torn out and the bridge rebuilt as an open-spandrel structure. The rebuild also included a wider deck to accommodate increased traffic and aluminum railings. While the bridge's original structural integrity has been compromised, this is the first notable concrete spandrel arch reconstruction in Iowa and possibly in the country. The bridge was listed on the National Register of Historic Places in 1998.
The Upper Paris Bridge is a historic structure located near the town of Coggon in rural Linn County, Iowa, United States. The pin-connected Whipple through truss bridge was built in 1879 as a wagon bridge. It was designed by the Wrought Iron Bridge Company of Canton, Ohio. The bridge was listed on the National Register of Historic Places in 1998 as a part of the Highway Bridges of Iowa MPS.
The Iowa Falls Bridge, also known as the Oak Street Bridge, was a historic structure located in Iowa Falls, Iowa, United States. The span carried U.S. Route 65 over the Iowa River for 255 feet (78 m). The through arch bridge was built by the Weldon Brothers Construction Co. of Iowa Falls in 1928 for $51,374.98. At the time it was completed the bridge was the longest arch span in the state of Iowa. It was listed on the National Register of Historic Places in 1998. The historic bridge was demolished and replaced in 2010.
The Washington Avenue Bridge in Iowa Falls, Iowa is an attractive concrete two-span open spandrel arched bridge that brings Washington Avenue over the Iowa River. Originally it carried US 20. It was built in 1934 by the Weldon Brothers for $51,710.55.
The Alden Bridge is a historic bridge in Alden, Iowa, which carries the town's Main Street over the Iowa River, United States. The concrete bridge is 150 feet (46 m) long and consists of two spans. It was built in 1936 to replace an earlier wooden bridge that had begun to deteriorate. The Weldon Brothers Construction Company supervised the bridge's construction, while the Iowa State Highway Commission designed the structure; it was one of the first bridges designed by the ISHC, which used similar plans for many other bridges in the state. Labor for the construction effort came from the Works Progress Administration, providing jobs for many of Hardin County's unemployed residents. The bridge was dedicated on July 4, 1936, as part of Alden's Independence Day celebrations.
The Vine Street Bridge in West Union, Iowa brings South Vine St. over Otter Creek. It is a concrete Luten arch bridge built in 1910 by N.M. Stark & Co. It was listed on the National Register of Historic Places in 1998.
The Marsh Rainbow Arch Bridge, also known as the Coon River Bridge and Rainbow Bend Access, is located south of Lake City, Iowa, United States. The 271-foot (83 m) three-span bridge carried traffic on Iberia Avenue over the North Raccoon River. It was designed by Des Moines engineer James Barney Marsh in his patented rainbow arch configuration, and constructed by the Iowa Bridge Company in 1914 for $10,970. It replaced a Howe truss bridge that had been built by the King Bridge Company of Cleveland. That bridge was put in service upstream and remained in use until 1983 when it was taken down. The Marsh arch bridge was bypassed in 1985, and remains in place in a county park. It was listed on the National Register of Historic Places in 1989.
Eveland Bridge is located southwest of Oskaloosa, Iowa, United States. It carried traffic of Fulton Avenue over the Des Moines River, spanning 647 feet (197 m). After receiving multiple petitions, the Mahaska County Board of Supervisors decided in April 1875 to build a bridge, replacing a ferry service that operated at this point along the river beginning in 1854. They contracted with the Fort Wayne Bridge Works of Fort Wayne, Indiana, to build the new bridge for $25,200. It was designed by C. W. Tracy, a civil engineer. The Whipple through truss span was completed in the summer of 1877. This style was rarely chosen for wagon trusses in Iowa, which means few were built and fewer remain standing. Its deck has subsequently deteriorated and the bridge has been closed to traffic. The Eveland Bridge was listed on the National Register of Historic Places in 1998.
The Okoboji Bridge is located southwest of Milford, Iowa, United States. The 83-foot (25 m) span carried traffic on 180th Avenue over a branch of the Little Sioux River. The Dickinson County Board of Supervisors hired a local contractor to build a bridge across the straits between East and West Okoboji Lakes in 1859. The wooden structures had to be rebuilt in 1874–1875. There was a desire for a drawbridge at this point to allow for steamboats to navigate between the lakes. Three different swing spans were built at this location in the 19th century. When the third span deteriorated the board of supervisors contracted with the Clinton Bridge and Iron Works of Clinton, Iowa to build a permanent span here in June 1909. The Pratt/Warren pony truss structure was completed later that year for $1,550. The bridge and the road were incorporated into the U.S. Highway System, and it was placed under the aegis of the Iowa State Highway Commission. In 1929 it was replaced with a fixed-span concrete girder structure. At that time the 1909 truss span was moved to Okoboji Township to span a branch of the Little Sioux River. It was listed on the National Register of Historic Places in 1998. The span has subsequently been abandoned.
The Dunkerton Bridge is a historic structure located in Dunkerton, Iowa, United States. The span carried a local street over Crane Creek for 212 feet (65 m). The three-span, filled spandrel arch bridge was built by the Marsh Engineering Company of Des Moines in 1909. It replaced an older span at a different location. The bridge served as the major entry point into the town from the north. This bridge was also replaced by a newer bridge to the east, and this span now carries pedestrian traffic between Charma Park and Marble Street into downtown Dunkerton. It was listed on the National Register of Historic Places in 1998.
The Rock Falls Bridge is a historic structure located in Rock Falls, in the north-central part of the U.S. state of Iowa. The span carries Spring Street over the Shell Rock River for 142 feet (43 m). The Iowa State Highway Commission prepared the plans for this bridge in September 1928, and they were revised in February 1929. While they designed riveted steel trusses for medium-span bridges in rural areas, they used concrete open spandrel arches like this one for several urban and small town structures in the 1920s. C.A. Holvik of Mason City was awarded the contract to construct the bridge, which they completed later in 1929. It was listed on the National Register of Historic Places in 1998.
The Stewart Avenue Bridge is a historic structure located in Mason City, in the north-central part of the U.S. state of Iowa. The span carries North Carolina Avenue over the Winnebago River for 116 feet (35 m). This span replaced bowstring arch-truss bridge at this residential location. The Iowa State Highway Commission had the plans completed by November 1913, although the city did not petition the county to have it built until February 1914. N.M. Stark and Company of Des Moines had the low bid at $12,775, which included the removal of the old bridge. Charles Smith provided the fill for the bridge, which opened in August 1914. It was listed on the National Register of Historic Places in 1998.
The Winnebago River Bridge was a historic structure located north of Mason City, Iowa, United States. The span carried U.S. Route 65 over the Winnebago River for 122 feet (37 m). This is the second span at this location. The stone abutments from the previous bridge were utilized in this one. They were sheathed in concrete by the Concrete Engineering Company, and William Henkel of Mason City constructed the bridge. It is composed of three concrete spans with a 70 feet (21 m) center span cantilevered from shorter anchor spans. It was listed on the National Register of Historic Places in 1998. A second span has subsequently been built to the east in 1969.
The Dunleith and Dubuque Bridge, also known as the White Water Creek Bridge and the Bergfeld Recreation Area Bridge, is a historic structure located in Dubuque, Iowa, United States. This span was part of a seven-span approach to one of the first bridges constructed over the Mississippi River. It was part of a railroad bridge that connected Dubuque with Dunleith, Illinois, now known as East Dubuque. The bridge was fabricated by the Keystone Bridge Company of Pittsburgh, Pennsylvania. Andrew Carnegie himself traveled to Dubuque to advocate for his company to build the bridge. The bridge was erected by Reynolds, Saulpaugh and Company of Rock Island, Illinois. The approach, of which this iron truss was a part, was completed in 1872. It was used by the Illinois Central and other railroads.
The Fish Creek Bridge is a historic structure that was originally located east of Salem, Iowa, United States. The span carried Hickory Road over Fish Creek for 50 feet (15 m). It is a small-scale, wrought-iron bridge that the Henry County Board of Supervisors bought from the George E. King Bridge Company of Des Moines in 1893 for $410.80. It was believed to have been fabricated by their parent company, King Iron Bridge Company of Cleveland, and assembled by local laborers. Its historical significance derived from its being an uncommon variant of the Pratt truss. It was listed on the National Register of Historic Places in 1998. Subsequently, the bridge has been replaced at its original location, and the historic structure was moved to Oakland Mills Park.
The Oakland Mills Bridge is a historic structure located in Oakland Mills Park southwest of Mount Pleasant, Iowa, United States. The span carried Hickory Road over the Skunk River for 358 feet (109 m). In July 1876 the Henry County Board of Supervisors decided to locate the bridge over the Skunk River at Oakland Mills. After engineers looked over the proposals, they choose the Missouri Valley Bridge and Iron Company of Leavenworth, Kansas to build the structure. The long-span combination Pratt truss through and pony truss was completed later the same year. The steel components where manufactured by the Phoenix Iron Company of Pennsylvania. It is one of the oldest Pratt through truss bridges in Iowa. Long closed to vehicular traffic, it was listed on the National Register of Historic Places in 1998.
The Matsell Bridge is a historic structure located northeast of Springville, Iowa, United States. It carries Matsell Park Road for 303 feet (92 m) over the Wapsipinicon River. This bridge replaced a bowstring truss bridge that had been built in stages between 1870 and 1906. E.W. Blumenschein, bridge design engineer for the Iowa State Highway Commission, recommended a plate girder bridge as a replacement. Clifford Shoemaker, District Engineer of the Federal Bureau of Public Roads, approved the plans as the new span was built by the Works Progress Administration. It was constructed by Amos Melberg for about $22,300. The bridge was listed on the National Register of Historic Places in 1998.
The Chain Lakes Bridge is a historic structure located southeast of Palo, Iowa, United States. It carries a pedestrian trail for 370 feet (110 m) over the Cedar River. The Linn County Board of Supervisors began planning for this span in the early 1880s. They appropriated $20,000 for this two-span Pratt through truss The Wrought Iron Bridge Company of Canton, Ohio, which built bridges in the county since 1879, completed this structure in 1884. The bridge was listed on the National Register of Historic Places in 1998. While it was built to carry vehicular traffic, it is now in a nature preserve maintained by the Linn County Conservation Board.
